Canasa 1000mg suppository side effects

Hi
I was diagnosed with ulcerative proctitis approximately 4 weeks ago. I was first given a 3 week treatment of Colocort enemas. At first it seemed as though things were getting better then towards the last 4 days of treatment the rectal burning started up again (not to mention I look like someone has beat me due to all the bruises from the steroids). The MD started me on Canasa suppositories last night. I have been searching for side effects experienced by people but keep coming up short. Any one got some info for me?

A bit of additional history is that I had my gallbladder out in December but upper abdominal pain has continued (a theory by one specialist is I have sphincter of Oddi dysfunction). I was also diagnosed in March with gastritis which has just recently healed.

Thanks in advance for all your feedback.
Chelsea

Age 34
Recently dx ulcerative proctitis
Meds
Hormone replacement Therapy (Total Hysterectomy 2006)
Probiotic
Vitamin
Calcium with Vitmain D
Canasa
Zofran as needed
Carafate as needed